If you can't figure out the basics....

... how can you become proficient in this medium?  I'm trying to figure out how to add a comment on a comment to post #1 and it keeps sending me back to the sign in page.  Urgh...  Heather, thanks for the comment.  Here's what I would have added:  "There is so much out there -- blogs, comments, articles, etc. -- that I'm finding it very easy to become overwhelmed.  I'm working on overcoming the idea that I have to read and explore absolutely everything.  This form of communication seems to require some strict time-management skills."